CN203103383U - Lithium ion battery as well as cover plate assembly and electrode guide piece thereof - Google Patents
Lithium ion battery as well as cover plate assembly and electrode guide piece thereof Download PDFInfo
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- CN203103383U CN203103383U CN201220727487XU CN201220727487U CN203103383U CN 203103383 U CN203103383 U CN 203103383U CN 201220727487X U CN201220727487X U CN 201220727487XU CN 201220727487 U CN201220727487 U CN 201220727487U CN 203103383 U CN203103383 U CN 203103383U
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- lithium ion
- cell electrode
- ion cell
- electrode leader
- cover plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a lithium ion battery as well as a cover plate assembly and an electrode guide piece of the lithium ion battery. The electrode guide piece of the lithium ion battery comprises a front face, a back face and a bending connecting portion, wherein the bending connecting portion is bent along a bending axis extending in a coincident direction with the width direction of the electrode guide piece of the lithium ion battery when the lithium ion battery is assembled, and a dent which is used for confirming the bending axis of the electrode guide piece of the lithium ion battery and extends to penetrate through the width direction of the electrode guide piece of the lithium ion battery is arranged on at least one of the front face and the back face of the electrode guide piece of the lithium ion battery. With the adoption of the technical scheme, the bending resistance at the dent of the electrode guide piece of the lithium ion battery can be reduced; and when the lithium ion battery is assembled, the electrode guide piece of the lithium ion battery can be deformed and bent along the dent, so that the good guidance is provided for the deformation of the electrode guide piece of the lithium ion battery, the operation is convenient, and the electrode guide piece of the lithium ion battery is not easy to damage.
Description
Technical field
The utility model relates to lithium ion battery, its cover plate assembly and lithium ion cell electrode leader thereof.
Background technology
Lithium ion battery generally needs to use cover plate assembly that its housing is carried out capping when assembling.For example application number is 200920164335.1 disclosed a kind of lithium battery cap board component of Chinese utility model patent and the lithium battery that uses this assembly, its cover plate assembly comprises the cover plate matrix, cover plate matrix top is provided with pole, the below is provided with and is used for the lithium ion cell electrode leader that is connected with the lug of lithium ion battery, pole and the corresponding setting up and down of lithium ion cell electrode leader, and, between pole and the cover plate matrix, be equipped with insulating part between lithium ion cell electrode leader and the cover plate matrix, to avoid the both positive and negative polarity short circuit or to make battery container charged.Pole, lithium ion cell electrode leader and insulating part use rivet to be fixed on the cover plate matrix.Wherein, the lithium ion cell electrode leader is the sheet metal sheet with obverse and reverse, and its width is adaptive with the width of lithium battery pole ear and be fixed on the lug with the lug conduction and be connected.Lithium ion battery is being covered when assembling, the cover plate assembly lid need be set to the opening part of lithium battery housing top, the lithium ion cell electrode leader can be by bending in this process, to adapt to the space after the assembling.The lithium ion cell electrode leader is the bending connecting portion by bending part, and this bending connecting portion has the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader.But, for guaranteeing the through-current capability and the bonding strength of lug and pole, the lithium ion cell electrode leader need possess certain intensity, if directly cover during assembling and establish cover plate assembly, by force with the bending of lithium ion cell electrode leader, not only can not determine the wrap direction and the bending position of lithium ion cell electrode leader, also cause the lithium ion cell electrode leader to damage easily, make troubles to operation.
The utility model content
The purpose of this utility model provides a kind of lithium ion cell electrode leader of bending when being convenient to assemble, and a kind of lithium ion battery cover board assembly and lithium ion battery with this lithium ion cell electrode leader is provided simultaneously.
The technical scheme that the lithium ion cell electrode leader is adopted in the utility model is: the lithium ion cell electrode leader, has obverse and reverse, and have when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader by the bending connecting portion of bending, at least one face in the obverse and reverse of described lithium ion cell electrode leader is provided with that the Width that runs through the lithium ion cell electrode leader extends is used for determining the indenture of the bending axis of lithium ion cell electrode leader.
Adopt technique scheme, the indenture of the bending axis that is used for definite lithium ion cell electrode leader of the Width extension that runs through the lithium ion cell electrode leader is set on the surface of lithium ion cell electrode leader, the lithium ion cell electrode leader that can reduce the indenture place is by the resistance of bending, when lithium ion battery is assembled, thereby the lithium ion cell electrode leader will be along this indenture distortion bending, for the distortion of lithium ion cell electrode leader provides good guiding, handled easily, not fragile.
Be provided with the opening of circular arc on the described lithium ion cell electrode leader along the two ends, the left and right sides of lithium ion cell electrode leader Width at described indenture.The opening that circular arc is set can further reduce the intensity of bending axis place lithium ion cell electrode leader, and better guiding function is played in the distortion of lithium ion cell electrode leader, makes the bending position more accurate, more convenient operation.
The technical scheme that the lithium ion battery cover board assembly is adopted in the utility model is: the lithium ion battery cover board assembly, comprise pole and be used to conduct electricity the lithium ion cell electrode leader of the lug that is connected described pole and lithium ion battery, described lithium ion cell electrode leader has obverse and reverse, and have when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader by the bending connecting portion of bending, at least one face in the obverse and reverse of described lithium ion cell electrode leader is provided with that the Width that runs through the lithium ion cell electrode leader extends is used for determining the indenture of the bending axis of lithium ion cell electrode leader.Adopt technique scheme, the indenture of the bending axis that is used for definite lithium ion cell electrode leader of the Width extension that runs through the lithium ion cell electrode leader is set on the surface of lithium ion cell electrode leader, the lithium ion cell electrode leader that can reduce the indenture place is by the resistance of bending, when lithium ion battery is assembled, thereby the lithium ion cell electrode leader will be along this indenture distortion bending, for the distortion of lithium ion cell electrode leader provides good guiding, handled easily, not fragile.
Be provided with the opening of circular arc on the described lithium ion cell electrode leader along the two ends, the left and right sides of lithium ion cell electrode leader Width at described indenture.The opening that circular arc is set can further reduce the intensity of bending axis place lithium ion cell electrode leader, and better guiding function is played in the distortion of lithium ion cell electrode leader, makes the bending position more accurate, more convenient operation.
Described cover plate assembly comprises the cover plate matrix, described lithium ion cell electrode leader is also corresponding up and down with below and top that described pole is separately positioned on the cover plate matrix, be provided with equal injection moulding insulating part between described pole and the cover plate matrix and between described lithium ion cell electrode leader and the cover plate matrix, described lithium ion cell electrode leader, pole and insulating part are to be fixed on the cover plate matrix by the rivet that runs through setting up and down.The injection moulding insulating part is set can carry out good sealing to lithium ion battery, and rivet is difficult for getting loose, and connects reliable, fastening effective.
Described pole is the pole plate of plate-like form.The form that pole is arranged to pole plate not only is convenient to rivet and is fixed, and also can adapt to the connection requirement of pole.
The technical scheme that lithium ion battery adopted in the utility model is: lithium ion battery, comprise electric core, cover plate assembly and conduction are connected in the lug on the described electric core, described cover plate assembly comprises pole and is used to conduct electricity the lithium ion cell electrode leader that is connected described pole and lug, described lithium ion cell electrode leader has obverse and reverse, and have when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader by the bending connecting portion of bending, at least one face in the obverse and reverse of described lithium ion cell electrode leader is provided with that the Width that runs through the lithium ion cell electrode leader extends is used for determining the indenture of the bending axis of lithium ion cell electrode leader.Adopt technique scheme, the indenture of the bending axis that is used for definite lithium ion cell electrode leader of the Width extension that runs through the lithium ion cell electrode leader is set on the surface of lithium ion cell electrode leader, the lithium ion cell electrode leader that can reduce the indenture place is by the resistance of bending, when lithium ion battery is assembled, thereby the lithium ion cell electrode leader will be along this indenture distortion bending, for the distortion of lithium ion cell electrode leader provides good guiding, handled easily, not fragile.
Be provided with the opening of circular arc on the described lithium ion cell electrode leader along the two ends, the left and right sides of lithium ion cell electrode leader Width at described indenture.The opening that circular arc is set can further reduce the intensity of bending axis place lithium ion cell electrode leader, and better guiding function is played in the distortion of lithium ion cell electrode leader, makes the bending position more accurate, more convenient operation.
Described cover plate assembly comprises the cover plate matrix, described lithium ion cell electrode leader is also corresponding up and down with below and top that described pole is separately positioned on the cover plate matrix, be provided with equal injection moulding insulating part between described pole and the cover plate matrix and between described lithium ion cell electrode leader and the cover plate matrix, described lithium ion cell electrode leader, pole and insulating part are to be fixed on the cover plate matrix by the rivet that runs through setting up and down.The injection moulding insulating part is set can carry out good sealing to lithium ion battery, and rivet is difficult for getting loose, and connects reliable, fastening effective.
Described lug is to be convexly equipped with the wedge shape lug that top surface and cross section at described electric core are broadened to the bottom gradually by the top, described wedge shape lug has the vertical side perpendicular to the top surface of described electric core, and the bottom electrical connection of described lithium ion cell electrode leader is arranged on the described vertical side.Electrode is arranged to the form of above-mentioned wedge electrode, can make the lithium ion cell electrode leader rely on wedge electrode vertical with the top surface maintenance of electric core and the bottom fixed, the bending distortion of lithium ion cell electrode leader bottom guarantees that the lithium ion cell electrode leader can be along the bending line bending when avoiding the lithium ion battery assembling.
Description of drawings
Fig. 1: the perspective view in an embodiment front of lithium ion battery in the utility model;
Fig. 2: the perspective view of an embodiment reverse side of lithium ion battery in the utility model;
Fig. 3: the partial enlarged drawing of I place lithium ion cell electrode leader structure among Fig. 2.
The name of each Reference numeral correspondence is called among the figure: 1 cover plate matrix, 2 safety valves, 3 negative plates, 4 positive plates, 5 liquid injection holes, 6 injection moulding insulating parts, 7 lithium ion cell electrode leaders, 71 indentures, 72 openings, 8 rivets, 9 electric cores, 91 lugs.
Embodiment
Lithium ion battery embodiment such as Fig. 1 in the utility model ~ shown in Figure 3, lithium ion battery mainly comprises electric core 9, lug 91 and lithium ion battery cover board assembly.
Lug 91 is to be convexly equipped with the wedge shape lug that top surface and cross section at electric core 9 are broadened to the bottom gradually by the top, and has the vertically disposed vertical side of top surface of electric relatively core 91.The pole that the lithium ion battery cover board assembly comprises cover plate matrix 1, be arranged on cover plate matrix 1 top be used to conduct electricity the lithium ion cell electrode leader 7 that is connected described lug and described pole, the bottom electrical of lithium ion cell electrode leader 7 connects and is arranged on the above-mentioned vertical side of lug 91.Lithium ion cell electrode leader 7 has obverse and reverse, and has when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader 7 by the bending connecting portion of bending.Wherein the reverse side of lithium ion cell electrode leader 7 is provided with the indenture 71 of the bending axis that is used for definite lithium ion cell electrode leader 7 of the Width extension that runs through lithium ion cell electrode leader 7, weakening the intensity of lithium ion cell electrode leader 7, thereby when assembling, make lithium ion cell electrode leader 7 along indenture 71 place bending axis bendings along the bending axis.In addition, be provided with the opening 72 of circular arc on the lithium ion cell electrode leader 7 along the two ends, the left and right sides of lithium ion cell electrode leader 7 Widths at indenture 71, further reduce the intensity of bending axis place lithium ion cell electrode leader 7, better guiding function is played in the distortion of lithium ion cell electrode leader 7.The bottom electrical connection of lithium ion cell electrode leader 7 is arranged on the vertical side of electrode.
Pole in the present embodiment is the pole plate of plate-like form, is divided into positive plate 4 and negative plate 3, positive plate 4 and negative plate 3 respectively up and down correspondence be provided with corresponding lithium ion cell electrode leader.Between positive plate 4 and negative plate 3 and the cover plate matrix 1, be equipped with injection moulding insulating part 6 between each lithium ion cell electrode leader 7 and the cover plate matrix 1, this injection moulding insulating part 6 is the working of plasticss that form by the injecting hole injection moulding PFA that is provided with at positive plate 4, negative plate 3 places on the cover plate matrix 1.Lithium ion cell electrode leader 7, positive plate, negative plate 3 and insulating part are to be fixed on the cover plate matrix 1 by the rivet 8 that runs through setting up and down, respectively be provided with two rivets 8 on positive plate 4 and the negative plate 3, during riveted joint, each rivet 8 passes lug leader, injection moulding exhausted insulating part, positive plate 4 or negative plate 3 from bottom to up successively, rivet again, reach effect fastening and sealing.
In addition, the cover plate matrix 1 in the utility model is formed for embedding the boss of lithium-ion battery shell through the punching press processing in edge, so that assemble and guarantee to be connected effect, sealing effectiveness.Middle part on the cover plate matrix 1 is provided with safe valve opening through punching press, is connected with safety valve 2 by laser welded seal in the safe valve opening.Corner portions on the cover plate matrix 1 is provided with the liquid injection hole 5 that runs through cover plate matrix 1 along cover plate matrix 1 thickness direction through punching press, is used for injecting in housing electrolyte.
During use, at first utilize ultrasonic welding machine that lithium ion cell electrode leader 7 and lug 91 are welded, then with lithium ion cell electrode leader 7 along 90 ° of indenture 71 bendings, can be easily cover plate matrix 1 lid be set to the lithium-ion battery shell top, be easy to bending, easy to assembly.
The lithium ion battery cover board assembly embodiment is the lithium ion battery cover board assembly described in the above-mentioned lithium ion battery embodiment in the utility model, the lithium ion cell electrode leader embodiment is the lithium ion cell electrode leader described in the above-mentioned lithium ion battery embodiment in the utility model, repeats no more herein.
In the above-described embodiments, indenture 71 is arranged on the reverse side of lithium ion cell electrode leader 7, and is provided with the opening 72 of circular arc on the lithium ion cell electrode leader 7 along the two ends, the left and right sides of lithium ion cell electrode leader 7 Widths at indenture 71.In other embodiment of the present utility model, indenture 71 also can be arranged on the front of lithium ion cell electrode leader 7, perhaps both has been arranged on the front and also has been arranged on reverse side, all can play the effect of same guiding bending.And the opening 72 that above-mentioned circular arc is set is a kind of preferred modes, is nonessential structure, also can save in other embodiment of the present utility model, only relies on indenture 71 channeling conduct when bending.In addition, lug 91 in the present embodiment is preferred to be adopted and is convexly equipped with the wedge shape lug that top surface and cross section at electric core 9 are broadened to the bottom gradually by the top, in other embodiment of the present utility model, lug also can be arranged to other form, for example all vertical with the top surface of the electric core 9 plate lug in side does not influence the setting of indenture in the technical program.
Claims (10)
1. lithium ion cell electrode leader, has obverse and reverse, and have when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader by the bending connecting portion of bending, it is characterized in that: at least one face in the obverse and reverse of described lithium ion cell electrode leader is provided with that the Width that runs through the lithium ion cell electrode leader extends is used for determining the indenture of the bending axis of lithium ion cell electrode leader.
2. lithium ion cell electrode leader according to claim 1 is characterized in that: the opening that is provided with circular arc on the described lithium ion cell electrode leader at described indenture along the two ends, the left and right sides of lithium ion cell electrode leader Width.
3. lithium ion battery cover board assembly, comprise pole and be used to conduct electricity the lithium ion cell electrode leader of the lug that is connected described pole and lithium ion battery, described lithium ion cell electrode leader has obverse and reverse, and have when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader by the bending connecting portion of bending, it is characterized in that: at least one face in the obverse and reverse of described lithium ion cell electrode leader is provided with that the Width that runs through the lithium ion cell electrode leader extends is used for determining the indenture of the bending axis of lithium ion cell electrode leader.
4. lithium ion battery cover board assembly according to claim 3 is characterized in that: the opening that is provided with circular arc on the described lithium ion cell electrode leader at described indenture along the two ends, the left and right sides of lithium ion cell electrode leader Width.
5. according to claim 3 or 4 described lithium ion battery cover board assemblies, it is characterized in that: described cover plate assembly comprises the cover plate matrix, described lithium ion cell electrode leader is also corresponding up and down with below and top that described pole is separately positioned on the cover plate matrix, be provided with equal injection moulding insulating part between described pole and the cover plate matrix and between described lithium ion cell electrode leader and the cover plate matrix, described lithium ion cell electrode leader, pole and insulating part are to be fixed on the cover plate matrix by the rivet that runs through setting up and down.
6. lithium ion battery cover board assembly according to claim 5 is characterized in that: described pole is the pole plate of plate-like form.
7. lithium ion battery, comprise electric core, cover plate assembly and conduction are connected in the lug on the described electric core, described cover plate assembly comprises pole and is used to conduct electricity the lithium ion cell electrode leader that is connected described pole and lug, described lithium ion cell electrode leader has obverse and reverse, and have when lithium ion battery is assembled along the bearing of trend bending axis consistent with the Width of lithium ion cell electrode leader by the bending connecting portion of bending, it is characterized in that: at least one face in the obverse and reverse of described lithium ion cell electrode leader is provided with that the Width that runs through the lithium ion cell electrode leader extends is used for determining the indenture of the bending axis of lithium ion cell electrode leader.
8. lithium ion battery according to claim 7 is characterized in that: the opening that is provided with circular arc on the described lithium ion cell electrode leader at described indenture along the two ends, the left and right sides of lithium ion cell electrode leader Width.
9. according to claim 7 or 8 described lithium ion batteries, it is characterized in that: described cover plate assembly comprises the cover plate matrix, described lithium ion cell electrode leader is also corresponding up and down with below and top that described pole is separately positioned on the cover plate matrix, be provided with equal injection moulding insulating part between described pole and the cover plate matrix and between described lithium ion cell electrode leader and the cover plate matrix, described lithium ion cell electrode leader, pole and insulating part are to be fixed on the cover plate matrix by the rivet that runs through setting up and down.
10. lithium ion battery according to claim 9, it is characterized in that: described lug is to be convexly equipped with the wedge shape lug that top surface and cross section at described electric core are broadened to the bottom gradually by the top, described wedge shape lug has the vertical side perpendicular to the top surface of described electric core, and the bottom electrical connection of described lithium ion cell electrode leader is arranged on the described vertical side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220727487XU CN203103383U (en) | 2012-12-26 | 2012-12-26 | Lithium ion battery as well as cover plate assembly and electrode guide piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220727487XU CN203103383U (en) | 2012-12-26 | 2012-12-26 | Lithium ion battery as well as cover plate assembly and electrode guide piece thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103383U true CN203103383U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220727487XU Expired - Fee Related CN203103383U (en) | 2012-12-26 | 2012-12-26 | Lithium ion battery as well as cover plate assembly and electrode guide piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109817875A (en) * | 2019-03-01 | 2019-05-28 | 湖北锂诺新能源科技有限公司 | Porous lightweight battery core of wedge shape and preparation method thereof |
-
2012
- 2012-12-26 CN CN201220727487XU patent/CN203103383U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109817875A (en) * | 2019-03-01 | 2019-05-28 | 湖北锂诺新能源科技有限公司 | Porous lightweight battery core of wedge shape and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 471003 Henan city of Luoyang province high tech Development Zone Binhe Road No. 66 Patentee after: China Aviation Lithium Battery Co., Ltd. Address before: 471003 Henan high tech Zone in Luoyang City, Spring City Road No. 16 Patentee before: China Aviation Lithium Battery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20181226 |